Solución
u
=
⟨
70
59
,
−
10
59
,
30
59
⟩
\bold{u} = \bigg \lang \frac{70}{\sqrt{59}},−\frac{10}{\sqrt{59}},\frac{30}{\sqrt{59}}\bigg \rang
u
=
⟨
59
70
,
−
59
10
,
59
30
⟩